Answer
The second point is wrong.
The correct second point is $(1,2)$.
The correct graph is shown below.
Work Step by Step
The given equation is
$\Rightarrow y+1=3x$
Subtract $1$ from each side.
$\Rightarrow y+1-1=3x-1$
Simplify.
$\Rightarrow y=3x-1$
The slope-intercept form is
$\Rightarrow y=mx+b$
$y-$ intercept is $b=-1$.
Plot the $y-$ intercept $A=(0,-1)$.
The slope is $m=3$.
Slope $m=\frac{rise}{run}=\frac{3}{1}$
The next point is $1$ unit right and $3$ unit up from the point $(1,2)$.
Plot the point $B=(1,2)$.
Draw a line through the two points.
Hence the second point is wrong.
The correct second point is $(1,2)$.
